.converting dvd.to quicktime.

.at work i was given a DVD move of a trade a month ago and i need to covert that so i can post it on the web.but when i put in the dvd the files are seperated into a video folder and an audio folder with lots of different files in them.if i can get it into quicktime i can export/convert it to certain specs i would want for web viewing but i dont know how to get it there.is there any program i can use.